Robert M. Yerkes

Robert M. Yerkes was assistant professor of comparative psychology at Harvard University, managing editor of the Journal of Animal Behavior, and editor of the Animal Behavior Series.

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Recent Stories

A nation is deļ¬ned by what it preserves.

The way they live, the food they eat, and the effect on us

A true but unlikely tale

Story and Photographs by William Rowan

Increasing day length on the early Earth boosted oxygen released by photosynthetic cyanobacteria.